Placer concentrating-machine.



J. F. NBWSOM. PLACER OONUENTRATING MACHINE.

AFPLIOATION.FILED JULY 27,1914.

1,, 1 2?,667. Patented Feb. 9, 1915.

2 SHEETS-SHEET 1.

WITNESSES:

INVENTOR J. F. NEWSOM. PLACER GONGENTRATING MACHINE. APPLICATION FILED JULY 27, 1914.

Patented Feb. 9, 1915.

2 SHEETS-SHEET 2.

IN VIGN'LOR (fa/2122 fizy wrz JOHN F. NEWSOM, OF PALO ALTO, CALIFORNIA.

PLACER CONCENTRATING-MACHINE. I

Specification of Letters Patent.

Patented Feb. 9, 1915.

Application filed July 27, 1914. Serial No. 853,251.

To all whom it'may'concern:

Be it' known that I, JOHN F. NEWsOM, a citizen of the United States, residing at Palo Alto, in the county of Santa Clara and State of California, have invented new and useful Improvements in Placer Concentrating-Machines, of 'which the following is a specification.

This invention relates to concentrators, and particularly to a concentrating apparatus for treating placer deposits.

One of the objects of the invention is to provide a concentrator including a sluice with an endless traveling bottom with a large and eflicint concentrating surface and which is adapted for continuous operation without requiring intermittent stops for cleanup; to provide means for driving the concentrating medium with one surface moving upward toward a feeding device and thence downward in an inverted position for subjection to washing means.

A further object is to provide an endless flexible sluice member with a substantial body, having a layer with high concentrating properties and with baflies or riflles, and with means for acting to divert or deflect the fluid current toward-the center of the sluice.

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanyingv drawings, in which V Figure 1 is a plan view of the apparatus. Fig- 2 is a side elevation partly in section. Fig. 3 is a cross section on a larger scale. Fig. 4 is a detail plan of Fig. 3. Fig. 5 is a. detail of the riflle mesh belt.

A represents a box, basin or concentrate launder and receiver with inwardly inclined side plates or walls 2 supporting lower and upper transverse drums 3 and 4. 0ver and by the drums, and between the receiver sides and under the edges of the walls, is driven an endless flexible sluice and concentrating member, comprising a body or belt 5, the

outer surface of which is covered with a small waves.

The placer material is discharged from a trough 8 onto the sluice mat at its head or higher part at a position'somewhat in advance of the head drum 4 and will flow down the inclined .top of the mat toward the lower drum. The worthless part of the material will be carried down over the mat belt ing the current flow and breaking it up into and discharge onto a tail launder 9, close to Concentrate carried overv drum 4 4 ing stretch of belt. the concentrate and spray water falling into the receiver A.

For diverting the stream from the sides of the belt '5, suitable deflectors are provided, here shown as comprising angularly adjustable, perpendicular blades 12 clamped to a cross strip 13 over the belt by bolts 14. As the belt travels upward on an incline,

the angle or slope of which may be determined by a platform of supporting rollers 15, the current and material will strike the angularly set blades 12 and be drifted toward the center of the surface ofthe belt.

Having thus described my invention, what Iclaim and desire to secure by Letters Patent is I 1. In a concentrating apparatus, atrough, an endless belt in the trough, a flexible mat superimposed on the belt and a flexible mask superimposed on the mat composed of hingedly connected bars which form ripples in the fluid.

2. In combination with an endless inclined Washing belt having a concentrating surface, means for feeding pulp and wash water to the concentrating surface of the belt in proximity to the upper end of the inclined area, a support extending across the concentrating area, and a plurality of perpendicular plates pivotally connected to said support, projecting into proximity to the concentrating surface and adapted to control the transverse distribution of pulp and water on the concentrating surface.

3. In combination, an endless inclined traveling'concentrating belt comprising a body having a mat on its outer surface, a

flexible mask upon the mat and comprising bars extending transversely of the direction of inclination and adapted to create ripples in the downwardly flowing pulp,

I means for supplying pulp and Water to the belt in proximity to the upper end of the.

inclined area, a bar extending across the concentrating area, and pivotally mounted deflectors on said bar projecting into proximity to the concentrating surface and adapted to control the transverse distribution of pulp and water on the concentrating surface.

5. In a concentrating apparatus, an in-- clined endless belt, a fluid and material supply for the upper stretch of the belt, a support extending across and over the upper stretch of the belt, and a series of deflectors carried by the support and angularly adjustable relatively to the direction of inclination of the belt to direct the fluid from said supply toward the center of the belt.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JOHN F. NEWSOM.

Witnesses:

JOHN H. HERRING, W. W. HEALEY. 

